Hi, maybe this is helpful for some people in Germany. I’ve just been on the bike for over an hour and saw all countries but surprisingly few German flags.
Updated: 14:15h CEST - to reflect feedback from Zwift support
Since yesterday around noon CET, no login possible to Zwift from iOS Companion App, Zwift iOS and Zwift macOS. ISP provider is Deutsche Telekom, fixed line, or Deutsche Telekom, mobile network.
Via mobile network, at least the Companion App started working very slowly. Extremely slowly.
Bypass the DNS / WAN Routing of Deutsche Telekom. As there are multiple resellers of Deutsche Telekom services, your ISP may be affected (like 1&1 in Germany).
Using a VPN service provider can help. NordVPN works for me, I have no affiliation with them and there are other, free (or trial period) services available which will probably just do fine.
Get in touch with your ISP and ask them to get their WAN routing straight. Zwift support recommends patience until the ISPs have fixed their issue within days, but I’m not aware of them driving this actively.
After some exchange with the (fast!) Zwift support, we came to the conclusion it may be an ISP problem (which I did not buy, at first). Seems like it’s true, if you connect via VPN, issue is gone. For me, any country worked, direct to USA west coast, Switzerland, even Germany. A traceroute to zwift.com and secure.zwift.com shows dropped packets, when run without VPN.
If you’re able to read this post, you’ve probably found a way around the login issue already as the forum uses the same server address and thereby routing.